Cooling system hoses and lines
More informationAt Global Parts, we offer a wide selection of original used car parts, including cooling system hoses and lines for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. The cooling system hoses and lines we offer are quality-controlled, ensuring you receive a top-quality product.
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Part no. A6511400675-1
Mercedes W639 W906 OM651 Diesel EGR Exhaust Cooler Heat Exchanger A6511400275
£32.95
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A9065011482
Mercedes Sprinter W906 Water Hose Cooling Radiator Coolant Pipe Hose A9065011482
Promo price
£23.95
£20.36
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2125018282
Mercedes W204 W212 Water Pipe OM651 Engine Cooling Coolant Hose Line A2125018282
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2045011682
Mercedes W212 Radiator Coolant Hose Pipe Engine Cooling A2045011682
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2048307496
Water Pipe Mercedes W204 W207 OM651 Cooling Coolant Hose Line A2048307496
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6512006901
Water Pipe Mercedes W212 Engine Cooling Coolant Hose Line A6512006901
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2045013182
Water Pipe Mercedes W204 OM642 Engine Cooling Radiator Coolant Hose A2045013182
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A9065012982
Radiator Hose Mercedes Sprinter W906 Diesel Water Cooling Pipe A9065012982
Promo price
£23.95
£20.36
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2125010024
Water Pipe Mercedes W204 W212 OM651 Engine Cooling Coolant Hose Line A2125010024
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A6512032182
Water Hose Mercedes W204 W212 Cooling Coolant Pipe Line A6512032182
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A9065014482
Mercedes Sprinter W906 Water Hose Cooling Radiator Coolant Pipe Line A9065014482
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6512031382
Mercedes Sprinter W906 Coolant Hose OM651 Diesel Heater Water Pipe A6512031382
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A9075282300
Mercedes Sprinter W907 Diesel Intercooler Left N/S Hose Air Line A9075282300
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6512001482
Coolant Hose Mercedes W204 Diesel OM651 Water Engine Cooling Line A6512001482
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2465010482
Mercedes W176 W246 OM651 Water Hose Engine Radiator Coolant Pipe A2465010482
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6421401175
Mercedes W212 W222 OM642 Diesel EGR Exhaust Cooler Heat Exchanger A6421401175
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2045012982
Water Pipe Mercedes W204 OM642 Engine Cooling Radiator Coolant Hose A2045012982
Promo price
£23.95
£20.36
Free delivery: Jul 21
If paid before 14:00
Part no. A2115015382
Water Hose Mercedes W211 CLS W219 Radiator Cooling Coolant Pipe A2115015382
£13.95
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A6512000182
Water Hose Mercedes W176 W246 Diesel OM651 Cooling Coolant Pipe A6512000182
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2465010382
Mercedes W176 W246 OM651 Radiator Water Coolant Hose Engine Cooling A2465010382
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6512031682
Mercedes W204 W212 W906 Water Cooling Coolant Pipe Hose OM651 Engine A6512031682
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A6395017982
Mercedes W639 Water Hose Coolant Expansion Tank Pipe Line A6395017982
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
Part no. A2115001972
Water Hose Mercedes W211 CLS C219 Radiator Coolant Cooling Pipe Line A2115001972
£18.95
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2125015782
Coolant Pipe Mercedes W212 W218 Expansion Overflow Tank Cooling Hose A2125015782
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2048308496
Water Pipe Mercedes W204 W207 OM651 Cooling Coolant Hose Line A2048308496
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6512031482
Coolant Hose Mercedes W204 W212 OM651 Diesel Heater Water Pipe A6512031482
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A6542038700
Mercedes W213 OM654 Diesel Water Coolant Cooling Pipe Line Hose A6542038700
Promo price
£23.95
£20.36
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6512031782
Water Hose Mercedes W176 W246 OM651 Water Coolant Pump Pipe Line A6512031782
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2712002552
Water Pipe Mercedes W204 M271 Engine Cooling Radiator Coolant Hose A2712002552
Promo price
£32.95
£28.01
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6422000056
Mercedes W164 OM642 Engine Coolant Flange Connector Hose A6422000056
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2035015782
Mercedes-Benz C-Class W203 Kompressor Radiator Top Hose Pipe Petrol A2035015782
Promo price
£28.95
£17.37
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2125280882-1
Mercedes W204 W212 Air Intake Hose Intercooler Charge Pipe Diesel A2125280882
Promo price
£56.95
£48.41
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2468304596
Water Hose Mercedes W176 W246 Diesel OM651 Cooling Coolant Pipe A2468304596
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A6512000682
Water Hose Mercedes W204 W212 OM651 Coolant Water Pump Pipe Line A6512000682
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2045010282
Water Pipe Mercedes W204 M271 Engine Cooling Radiator Coolant Hose A2045010282
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2702032902
Water Pipe Mercedes C117 W176 W246 M270 Coolant Hose Line A2702032902
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6512033082
Mercedes W212 OM651 Coolant Hose Connector Thermostat Pump Outlet A6512033082
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A1715010382
Mercedes SLK R171 M271 Water Pipe Cooling Coolant Hose Line A1715010382
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2468302896
Water Hose Mercedes W176 W246 OM651 Coolant Water Pump Pipe Line A2468302896
Promo price
£23.95
£20.36
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2045013425
Mercedes W204 Radiator Coolant Hose Cooling Pipe Bleed Line Diesel A2045013425
Promo price
£32.95
£19.77
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A9078300001
Water Hose Mercedes Sprinter W907 Heat Exchanger Coolant Feed Pipe A9078300001
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6395014382
Mercedes-Benz Vito W639 Engine Radiator Water Coolant Hose Pipe A6395014382
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A1725010682
Mercedes SLK R172 Diesel OM651 Coolant Hose Left N/S Radiator Line A1725010682
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A6542031302
Mercedes W205 W213 W447 OM654 Water Hose Engine Cooling Coolant Pipe A6542031302
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2465011358
Water Hose Mercedes W176 W246 OM651 Cooling Coolant Pipe Line A2465011358
Promo price
£37.95
£22.77
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6462030482
EGR Cooler Hose Mercedes W203 W211 OM646 Heat Exchange Coolant Line A6462030482
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2045280682
Mercedes W204 W212 Air Intake Hose Intercooler Charge Pipe Diesel A2045280682
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2128320994
Water Pipe Mercedes W212 Engine Cooling Coolant Hose Line A2128320994
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6402032682
Mercedes-Benz W169 W245 180CDI 200CDI Water Coolant Pipe Hose A6402032682
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2742002982
Mercedes W204 Water Hose Coolant Cooling Pipe Line A2742002982
Promo price
£28.95
£17.37
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6462030182
Mercedes Vito W639 OM646 Water Hose Pipe Coolant Line Heat Exchanger A6462030182
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2048306396
Mercedes W204 W207 Diesel Water Line Coolant Hose Ruber Pipe A2048306396
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A1765012282
Mercedes W176 Coolant Hose Radiator Pipe A1765012282
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6512032582
Mercedes W176 W242 W246 OM651 Coolant Hose EGR Cooler Feed Line A6512032582
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2712002352
Mercedes W204 Water Hose Radiator Coolant Cooling Pipe Line A2712002352
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2711410683
Mercedes-Benz W203 W211 M271 Kompressor EGR Valve Hose Pipe Petrol A2711410683
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A1698301596
Mercedes W169 W245 Water Coolant Hose Pipe Radiator A1698301596
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A6420701433-1
Mercedes W164 OM642 Fuel Injection Line Pressure Pipe Rail Injector A6420701433
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A1645060835
Mercedes-Benz M ML W164 Heater Radiator Coolant Pipe Hose Part A1645060835
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A9065013182
Radiator Hose Mercedes W906 Sprinter OM651 Diesel Coolant Line Pipe A9065013182
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2712002452-2
Mercedes W204 Water Pump Hose Radiator Coolant Cooling Pipe Line A2712002452
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2115015482
Water Hose Mercedes W211 CLS W219 Radiator Cooling Coolant Pipe A2115015482
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2465010282
Water Pipe Mercedes C117 W176 W246 M270 Radiator Coolant Hose Line A2465010282
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2048300996
Water Hose Mercedes W204 W212 Engine Cooling Radiator Coolant Pipe A2048300996
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2465010182
Water Pipe Mercedes C117 W176 W246 M270 Radiator Coolant Hose Line A2465010182
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2208320494
Mercedes-Benz CL S Class C215 W220 Water Coolant Hose Pipe Radiator A2208320494
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2538305500-1
Water Hose Mercedes W213 S213 Cooling Coolant Pipe Line A2538305500
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2135014782
Water Hose Mercedes W213 S213 Radiator Cooling Coolant Pipe Line A2135014782
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2465011258
Water Hose Mercedes W176 W246 OM651 Cooling Coolant Pipe Line A2465011258
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6401400575
EGR Exhaust Cooler Mercedes W169 W245 Heat Exchanger OM640 Diesel A6401400575
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. rhd-A1718300415
Mercedes R171 AMG Water Hose Cooling Coolant Pipe Line A1718300415
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2055016300
Mercedes C205 OM651 Overflow Expansion Tank Coolant Hose Pipe Line A2055016300
Promo price
£37.95
£22.77
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2055016100
Mercedes W205 Water Hose Radiator Coolant Cooling Pipe Line Petrol A2055016100
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2055013984
Mercedes W205 OM651 Diesel Water Hose Coolant Cooling Pipe Line A2055013984
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A1775017201
Mercedes W177 Water Hose Coolant Cooling Pipe Line A1775017201
Promo price
£56.95
£34.17
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2478307200
Water Hose Mercedes W177 W247 Heat Exchanger Coolant Return Pipe A2478307200
Promo price
£28.95
£17.37
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A6462030282
Mercedes W639 Heat Exchanger Hose Water Coolant Top Pipe Line OM646 A6462030282
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6512032282
Mercedes W204 W212 OM651 Engine Water Pipe Cooling Coolant Hose A6512032282
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A4475010482
Coolant Hose Mercedes W447 OM651 Radiator Engine Water Cooling Line A4475010482
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
Part no. RHD-A2515060118
Mercedes W164 W251 Water Coolant Pipe Hose Line Splitter Connector A2515060118
£23.95
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A0005003040
Mercedes W205 W213 W222 C253 Engine Cooling System Coolant Valve A0005003040
Promo price
£47.95
£28.77
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2055002600
Mercedes W205 M264 Coolant Pipe Water Pump Radiator Air Pump Line A2055002600
Promo price
£47.95
£40.76
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2218324494
Mercedes-Benz S-Class W221 Engine Water Cooling Coolant Hose Pipe A2218324494
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. rhd-A1718301296
Mercedes SLK R171 M271 Water Hose Coolant Cooling Pipe Line A1718301296
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A1695010182
Mercedes-Benz A B W169 W245 Radiator Water Cooling Pipe Hose Bottom A1695010182
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A1775017202
Mercedes C118 W177 W247 Water Hose Coolant Pipe Line Tube A1775017202
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A1715010225
Vent Pipe Mercedes SLK R171 Cooling Line Expansion Tank Hose A1715010225
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2218324394
Mercedes-Benz S-Class W221 Engine Water Cooling Coolant Hose Pipe A2218324394
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2465010458
Mercedes X156 Oil Coolant Hose Pipe Line Tube A2465010458
Promo price
£28.95
£17.37
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6400101382
Mercedes-Benz W169 W245 180CDI 200CDI Water Coolant Pipe Hose A6400101382
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A6110700033
Mercedes-Benz M-Class ML W163 Injection System Pressure Line Diesel A6110700033
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2535019482
Coolant Hose Mercedes X253 GLC220D Right Cooler Hose Line To Engine A2535019482
Promo price
£28.95
£17.37
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2475062800-1
Mercedes W177 W247 Water Hose Coolant Cooling Pipe Line A2475062800
Promo price
£56.95
£34.17
Free delivery: Jul 21
If paid before 14:00
-15%
Part no. A2702031582
Coolant Hose Mercedes W177 M260 Engine Coolant Cooling Pipe Line A2702031582
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A2478306000
Mercedes W177 AMG Water Pipe Heater Cooling Coolant Hose Line A2478306000
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A6398322393
Heat Exchanger Hose Mercedes Vito W639 OM646 Water Coolant Pipe A6398322393
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-40%
Part no. A1725014482
Mercedes SLK R172 OM651 Engine Coolant Water Pipe Hose A1725014482
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A9075010600
Mercedes W907 Water Hose Engine Cooling Coolant Pipe A9075010600
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
-5%
Part no. A2465010358
Mercedes W176 W246 Coolant Hose Water Pump To Oil Cooler A2465010358
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
Flexible and rigid cooling hoses – durability and fit for popular models
Rubber and silicone hoses for cooling systems – temperature and pressure resistance
Cooling system hoses and pipes are key components that enable the circulation of coolant between the radiator, water pump, thermostat, and the engine. Their efficiency and tightness are essential for the proper operation of the cooling system and for preventing engine overheating. In the Global Parts automotive store, you will find a wide selection of used car parts, including cooling system hoses and pipes, ideal for brands such as BMW, Audi, Mercedes, Volkswagen, Mini, and others.
Differences between flexible and rigid cooling system hoses
Flexible cooling hoses made of EPDM rubber or silicone allow for the compensation of engine vibrations and pressure changes. Rigid pipes (e.g., aluminum or PA12 plastic) are used where shape stability and resistance to high temperatures are required – even up to 150–180°C. Modern vehicles often use a combination of both types, which ensures optimal coolant flow and a longer service life for the entire system.
What functions do cooling system hoses and pipes perform?
Cooling system hoses and pipes play a key role in regulating the engine's operating temperature:
- Coolant transport – Hoses and pipes connect key components of the cooling system, enabling the flow of coolant throughout the entire system.
- Overheating prevention – By circulating the coolant, they maintain the proper engine operating temperature, preventing it from overheating.
- Proper flexibility and tightness – The materials from which the hoses and pipes are made ensure their resistance to high temperatures, pressure, and the effects of coolant. Efficient cooling system hoses and pipes are necessary for the effective operation of the entire cooling system.
Construction and purpose of cooling system hoses and pipes
Cooling system hoses and pipes are components that connect individual fluid circuit subassemblies in the engine compartment. They are used to route coolant between the engine, radiator, heater core, thermostat, and expansion tank, and their routing depends on the engine version and mounting location. A typical component has a profile adapted to factory mounting points, ends for clamps or quick-connectors, and markings helpful for comparing OEM numbers.
Comparison of cooling hose types and verification data
| Component type | Typical construction | Application | What to check before purchase |
|---|---|---|---|
| Flexible hose | EPDM rubber or silicone, reinforcing layer | Sections exposed to vibrations and powertrain movement | End diameter, bend shape, surface condition, clamp type |
| Rigid pipe | Plastic or metal, with quick-connector sockets | Fixed flow paths near the engine or radiator | Mounting points, presence of connectors, engine version compatibility |
| Hose with vent or branch | Body with an additional outlet or tee | Connecting multiple circuits in one system | Branch layout, OEM number, sensor or vent position |
Construction and technical parameters of cooling hoses
A typical cooling system hose consists of several layers: an outer protective layer, a reinforcing layer (reinforced with synthetic fiber), and an inner layer – chemically resistant to coolants. The operating pressure of such hoses is usually 1–2 bar, with a burst strength of up to 5 bar. The use of appropriate materials prevents hoses from cracking during rapid temperature changes, especially in cars with turbocharged engines. Cooling system hoses, commonly known as radiator hoses, can be made of various materials – most often EPDM rubber or silicone, which withstand temperatures from –40°C to as high as +150°C. In high-performance vehicles, e.g., BMW M-series or Audi S-Line, silicone hoses with a reinforced textile construction are used, guaranteeing longer service life and resistance to operating pressures above 2 bar. Flexible hoses allow for the compensation of powertrain vibrations, while rigid sections (e.g., aluminum) ensure stability during high fluid flow.
The importance of connectors, joints, and cooperating elements
A cooling system connector is a rigid end of a pipe or housing to which a coolant hose is attached. It serves to tightly connect circuit elements and often works with a clamp, gasket, or quick-connector. In the case of parts such as an Audi A3 8P water connector, it is worth comparing the OEM number, connection diameter, outlet position, and compatibility with the thermostat housing or cylinder head.
Why is it worth taking care of cooling system hoses and pipes?
Damaged or worn cooling system hoses and pipes can lead to serious cooling system problems. Typical symptoms include:
- Coolant leak – Leaks in hoses or pipes can lead to fluid loss and a drop in coolant levels.
- Engine overheating – Restricted coolant flow resulting from hose damage can lead to engine overheating.
- Noises and vibrations – Improper mounting or damaged hoses can cause vibrations and noises during system operation. At Global Parts, we offer used cooling system hoses and pipes that have undergone detailed quality tests, ensuring their durability and tightness.
Symptoms of damage and cooling hose compatibility - table
| Failure symptom | Possible cause | Recommended action |
|---|---|---|
| Coolant level drop | Micro-leak in the hose | Replace the cooling system hose |
| Engine overheating | Clogged hose or kink | Check for obstructions, replace |
| Vibrations or gurgling | Loose hose mounts | Tighten clamps, check brackets |
| Low engine operating temperature | Excessive flow – lack of resistance | Check thermostat operation |
How to choose the right cooling system hoses and pipes?
When choosing cooling system hoses and pipes, pay attention to several key aspects:
- Vehicle model fitment – Every cooling system has its specific technical requirements. At Global Parts, you will find cooling system hoses and pipes perfectly matched to BMW, Audi, Mercedes, Volkswagen, Mini, and others.
- Technical condition – Ensure that the hoses and pipes are free from cracks, bulges, and other damage.
- Material resistance – Choose hoses and pipes made of materials resistant to high temperatures and operating fluids.
Part selection procedure
To correctly select a cooling system hose, it is worth using the vehicle's VIN or the part's OEM designation. In the Global Parts system, searching is done automatically by engine code or catalog number, which minimizes the risk of a mismatch. As a result, the hoses are fully compatible with the water pump, radiator, and thermostat, and the entire system maintains factory tightness.
Selecting hoses by circuit, mounts, and car version
A cooling system hose is used to route fluid exactly between indicated circuit points, which is why it is not a universal element. When choosing an element such as a radiator hose, check the mounting side, end diameters, presence of quick-connectors, and compatibility with thermostats and cooling system housings. If you are looking for a subassembly such as a hose from the radiator to the engine, it is also worth comparing the bend path, support points, and fitment to water radiators and expansion tanks.
Why choose used cooling system hoses and pipes?
Used car parts, such as cooling system hoses and pipes, are a practical solution that allows for savings while maintaining high quality. By choosing used cooling system hoses and pipes, you gain:
- Lower costs – Used components are significantly cheaper than new ones but offer equally high quality.
- Ecology – Recycling car parts supports environmental protection and reduces waste.
- Wide selection – In our store, you will find cooling system hoses and pipes for the most popular car brands.
Hose cooperation with other cooling system elements
The efficiency of hoses depends not only on the material itself but also on the condition of cooperating elements. In practice, it is worth checking connections with cooling system water pumps, the thermostat housing, the radiator, and hose clamps, and an additional source of knowledge is our guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. Such verification makes it easier to assess whether the problem stems from the hose, a leaking connector, or improper system venting.
How to take care of cooling system hoses and pipes?
To ensure cooling system hoses and pipes work reliably for a long time, it is worth following a few rules:
- Regularly check the condition of hoses and pipes to prevent coolant leaks.
- Monitor the coolant level – a sudden drop may indicate a leak in the hoses.
- Replace damaged or worn elements on time to avoid more serious cooling system problems. If replacement is necessary, at Global Parts you will find suitable used auto parts that will restore full efficiency to your cooling system.
FAQ
| Question | Answer |
|---|---|
| What is the construction and purpose of cooling system hoses and pipes? | Cooling system hoses and pipes are coolant circuit elements installed between the engine, radiator, thermostat, heater core, and expansion tank. A typical hose consists of an inner layer resistant to fluid, a reinforcing layer, and an outer cover protecting against temperature and material aging. Depending on the mounting location, it can take the form of a flexible hose or a rigid plastic or metal section. |
| What are cooling system hoses and pipes used for? | Cooling system hoses and pipes are used to route coolant through the entire system and maintain the proper engine operating temperature. They are responsible for connecting subassemblies, circuit tightness, and the proper transfer of fluid to the radiator, heater core, and water pump. Their failure can cause leaks, air in the system, and disruption of fluid circulation. |
| What is the construction and function of a cooling system connector? | A cooling system connector is a connection point to which a hose or pipe transporting coolant is attached. It can be part of the thermostat housing, radiator, cylinder head, or another subassembly and usually works with a gasket, clamp, or quick-connector. Its task is to maintain a tight and stable connection in places where pressure and temperature changes occur. |
| How to choose cooling system hoses and pipes for a specific car version? | It is best to compare the OEM part number, hose path, end diameters, and type of connectors. It is also worth checking the engine version, fuel type, production year, mounting location, and any interchangeable numbers. For used parts, the completeness of brackets, vents, and branches also matters. |
| What symptoms indicate wear of cooling system hoses and pipes? | The most common signs are coolant leaks, traces of moisture at connections, swollen material, cracks, or a hose structure that is too soft. In practice, fluctuations in engine operating temperature, gurgling, and sediment traces near clamps may also appear. Such symptoms should be checked along with fluid levels and connection tightness. |
| How to care for cooling system hoses and pipes after installation? | After installation, it is worth checking the hose routing, tightening of clamps, and lack of contact with hot or moving engine compartment elements. It is also important to check the coolant level and system venting after the first start. Regular inspections help to quickly detect leaks, abrasions, and material deformation. |
Summary: cooling system hoses and pipes at the Global Parts automotive store
Cooling system hoses and pipes are key elements ensuring efficient coolant flow and maintaining optimal engine operating temperature. The Global Parts offer includes used parts matched to vehicles from brands such as Mercedes, Audi, BMW, as well as many other manufacturers. When selecting, it is worth checking the OEM number, fuel type, condition, interchangeable numbers, and compatibility with the engine version and mounting location. We invite you to contact us – we are here to help you! For more information and interesting facts, we also invite you to visit our automotive blog.